Describe:1. The number of layers of the lunch box is 22. It can be heated in a microwave oven, and the lid needs to be removed when heating. Do not heat the lid together3. High-strength sealing, no leakage when inverted. Long-lasting freshness4. Thickened buckle design, stable and firm. more comfortable to use5.The color of the insulation bags is random. Black, grey or dark blue.Product description:Name: Double-layer convenient lunch boxMaterial: 304 stainless steel + PPSpecifications: shape rectangle; size 20cmx11cmx12cmCapacity: upper layer capacity 650ml; lower layer capacity 750ml.color: White/blue/pinkFeatures: leak-proof/sealed/portable/microwave heating/healthyPackage Content: 1x Lunch Box With Tableware